Wagon unloading stripper conveyor



June 2l, 1955 f J. H. BNG

WAGON UNLOADING STRIPPER coNvEYoR Filed Feb. 15, 1954 n fndo H @Einf United States Patent Oil 2,711,262 Patented June 2l, 1955 lice 2,711,262 WAGON UNLOADING STRIPPER CONVEYOR John H. Bing, Downers Grove, lll., assignor to International Harvester Company, a corporation of New Jersey Application February 15, 1954, Serial No. 410,153 Claims. (Cl. 214-520) This invention relates to stripper conveyors and more specilcally to a novel conveyor assembly for unloading wagons and the like.

A general object of the invention is to provide a novel portable conveyor assembly which is adaptable for mounting in various types of wagons to provideva selfunloading unit.

A more specific object of this invention is to devise such a conveyor assembly which advances into a load within a wagon or the like for discharging the load over the top of the wagon from a side thereof.

These and other objects of the invention become more apparent from the specification and drawings wherein:

Figure l is a perspective view of the novel conveyor assembly;

Figure 2 is a longitudinal vertical sectional view through a wagon illustrating the conveyor mounted therein and taken substantially on line 2 2 of Figure 3 with the motor removed;

Figure 3 is a plan view of the wagon-conveyor assembly shown in Figure 2; Y

Figure 4 is a fragmentary enlarged sectional view of the step by step drive mechanism for advancing the conveyor; and

Figure 5 is a fragmentary enlarged plan view partly in section of the drive for the cross-conveyor.

Describing the invention in detail, the unloader generally designated 2 comprises a support framework indicated 3 which includes a pair of runners 4 and 5 at opposite sides of the unit and upon which the conveyor structure is adapted to be supported, said runners supporting and connected to the bottom ends of upright posts or standards 6 and 7 respectively and each post being connected adjacent to the upper end of a diagonal brace member 8 the lower end of the brace member being connected to the related shoe 4 or 5. lThe posts 6 and 7 may be interconnected by a cross beam 9. And. the shoes 4 and 5 may be connected to a panel or platform structure 10 which may extend therebetween and support intermediate the shoes an internal combustion engine or a suitable electric motor 12. The forward ends of the runners 4 and 5 have upstanding mounting brackets 14 and respectively, which support a cross shaft 16 therebetween said shaft 16 rotatably mounting a roller 17 about which is trained an endless apron 18 having a forwardly facing advance run 19 and a return run 20, the stipper conveyor apron being wrapped about an upper roll 21 which is connected to a cross shaft 22 journalled in bearings 23 and 24 in the upper ends of the beam members 6 and 7. The shaft 22 comprises a sprocket 24 connected thereto which is driven by a chain 25 which is trained over a sprocket 2.6 connected to a countershaft 27 which is rotatably mounted in a bearing 27a carried by the upper end of the post 6. It will be noted that the countershaft 26 is located over the upper edge of an adjacent side wall 28 on the associated wagon box 30. The shaft 27 is provided with a sprocket 32 which is driven by a chain 33 which is trained over a ,Y its opposite end trained keyed to a shaft 62 having one end rotatably mounted' sprocket 34 connected to a camshaft 35 which extends generally parallelto the shaft 27 and is rotatably mounted on one end in a bearing 36 carried within a cross brace 37 of the side frame 6a of the frame structure 3. The opposite end ofthe camshaft 35 may be rotatably mounted on a. standard 40 which may be connected to the engine structure 12. The camshaft may be keyed to a sprocket 41 which may be driven by a chain 42 trained about a sprocketV 43. connected to the output shaft 44 of the engine or the motor 12. .Y

The unloading mechanism Z'may be provided with av cross-conveyor generally designated 50 tend crosswise of the box. 30 of an associated wagon with its opposite ends hanging over the spaced sides 28 and 51 of the box. One end of the conveyor 50 may be provided with a shaft 53 which may be carried at one end in a bracket 54 on the upper end of the post 6 and at its opposite end within an -adjacent end of a beam member 55 carried by the upper ends of a diagonal brace member 56, 56 connectedto the posts 6 and 7 intermediate their ends. Shaft 53'may rotatably mount a roller 57 about which may be trained an endless. apron 58 having a top run 59 disposed along the upper discharge end 60 of the elevator conveyor, theV apron 58 having about a roller 61 which may be within the bearings 63 carried within the adjacent end of beam 55. The opposite end of the shaft 62 is rotatably mounted within a bearing 64 on a bracket 65 connected to the upper end of the post 7 and the shaft 62 extends intoa gear box 66 and is connected to a bevel gear' 67 which meshes with abevel gear 68 which is driven by the drivingshaft 22 of the upper roll 21 of the elevator conveyor.

The camshaft 35 is provided with a cam- '70 having a suitable profile 71 which engages a roller 72 of a step by step advancing mechanism generally designated 73 which comprises an arm 74 connected at its upper end as at 75 to the roller 72l and at its lower end being rotatably mounted as at 76 on a cross shaft 77 which is connectedv to a ratchet wheel 78. The arm assembly '74 pivotallyy mounts a spring pressed panel 79 which is engageable with the teeth 80 for rotation of the ratchet wheel pursuant to actuation of the arm assembly 74 by the cam 70. The shaft 77 isl journalled at opposite ends inupstanding brackets 82 and' 83 providedron the shoes 4 and 5 inter.- mediate their endsy and the ends of the power transmitting shaft 77 are provided withl a sprocket 84 and 85, the sprocket 8'4 meshing with a chain 86.I and the sprocket 85 meshing with a chain 87 which is trained thereover and the chain`86 isV passed under sprockets 89 and 90 journalIed on upstanding bracket91. and 92 on the shoe 4 to hold Achain 86 wrapped aboutasprocket 84 and the'chainl 86 is anchored at one end asat 94 to the forward wall 95 ofthe box and at its other end as at 96 to the rear wall 97 ofthe box. The. sprocket 85. issirnilarly associated withl the chain 87 which is attached at 98 to the forward wall and at 99 to the rear wall 97.

In operation the unit 2 is mounted within an associated wagon upon the bottom wall 101 and the guide chains 86 and 87 secured to the walls 95 and 97 of the box and the unit is disposed against a wall 97. After the box 30 is filled ahead of the unloading unit 2, to unload, the motor 12 is energized; if the power unit be an electrical motor it may be provided with a suitable wire (not shown), which may be extended through a suitable opening in rear wall 97 and plugged into an electrical outlet; whereupon the chains and shafts are driven in the direction shown by the arrows in Figure 1 and having specific reference to Figure 1 the advance run 19 of the apron stripper conveyor moves diagonally upwardly and discharges onto the transverse conveyor top run 59 of the apron 58 which which may exdischarges off the side of the wagon to a suitable trough or like. The camshaft 35 rotates in a clockwise direction as best seen in Figures 1 and 4 and through its driving proiile 71 pendulates the arm assembly 74 in cooperation with the return spring 100 connected ybetween the arm assembly 74 and an adjacent brace member 8 to revolve the ratchet wheel 78 step by step which in turn rotates the shaft 77 which drives the sprockets 84 and S5 to track in the respective chains or rack members in order to advance the entire unloading assembly forwardly into the load to the forward end of the box. Upon the wagon being unloaded the entire unit may be moved by a suitable winch to the rear wall after lifting the panel 79 off the wheel 80.

It will be appreciated that the instant design is merely' chosen for the purpose of illustration and not limitation and as set forth by the appended claims.

What is claimed is:

l. In a device of the class described for use with a wagon comprising a box with spaced, interconnected sides, end and bottom walls, an unloader movable on said bottom wall between said side walls from one end wall to the other and comprising an ambulatory support structure movably mounted upon said bottom wall, a stripper elevator carried by said structure between said side walls and extending diagonally upwardly from said bottom wall over the top of the box, a transverse conveyor disposed in receiving relationship to said elevator and having a discharge end projected over and beyond one of said side walls, a power source carried by said` structure beneath said conveyor and behind said elevator, and driving connections between said power source and said elevator and said conveyor, and means for advancing said unloader from one end of said box to the other comprising step by step transmission means including a camshaft rotatably carried by said structure and driven by said power source, a cam connected to said camshaft, a driven shaft journalled on said structure, a ratchet wheel connected to said driven shaft, a driving arm pivoted on said driven shaft and disposed in driven relation to said cani, a spring pressed pawl connected to said arm and cooperativelyy associated with said ratchet wheel for driving the same with said driven shaft in one direction pursuant to pivotf ing of said arm, a rack connected to said box and extending lengthwise thereof, and an element meshing with said rack and connected to said driven shaft.

2. In a material transferring device; a support structure including triangular shaped laterally spaced side frames each including a bottom shoe member, a standard projecting upwardly from intermediate the ends of the shoe, and a diagonal member extending between the forward end of the shoe and said standard and connected thereto; an elevator conveyor stretched between the forward ends of said shoes and comprising a bottom roll including a shaft journalled from the forward ends of said shoes, an upper roll having a shaft journalled'from the upper ends of said standards, an endless apron trained about said rolls and having a forwardly facing advance run with an upper discharge end, a discharge conveyor extending lengthwise transversely of said side frames adjacent the upper ends of said standards, and compris ing a pair of rolls at opposite ends with shafts, means 'on said standards journalling therespective adjacent lastinentioned shafts, an endless apron trained about said last-mentioned rolls and having a top run in receiving relation to said upper discharge end of said elevator conveyor, aplatform interconnecting said side frames'below said last-mentioned apron, a power source mounted on saidy platform, and drive transmitting means from said power source to said shaft of said upper roll and to a shaft of one of said rolls of said discharge conveyor.

3. The combination according to claim 2 and meansk I for advancing said device into a load and comprising a step by step transmission operatively associated with said power source, and propelling means driven by said power z 5. A material transferring lmachine comprising a foun.l dation structure, including a bottom portion movably supporting said structure and an upright portion extend?` ing from the lbottom portion, an elevator conveyor mounted on Vsaid structure and extending diagonally between said bottom and Vupright portions and having sa forwardly facing gathering portion and an upperdischarge end, a second conveyor carried by the upper extremities of said upright portion and disposed in receiv ing relation to said discharge end of the elevator conveyor, a platform embodied in said structure beneath said j elevator conveyor, a power source? mounted on said platform, drive transmitting means supported on saidl structure and including a first shaft having a drivingconnection with said power source, a eountershaft journalled on said bottom portion of said structure, propelling means for said machine driven by said countershaft, a cam on said firstshaft constrained. for rotation therewith,

a ratchet wheel constrained for rotation with said counterf Y shaft, an arm pivoted on said` countershaft and having means engaging said cam to effect pendulation of said arm pursuant to rotation of said cam with said rst shaft, a driving 'connection elevator conveyor, and a driving connection between said elevator conveyor and said second conveyor, and means i on said arm for rotating said ratchet wheel.

References Cited in the le of this patent UNITED STATES PATENTS 1,554,725 Hochreiter Sept. 22, 1925 2,503,129 Pautz Apr. 4, 1950 2,597,974 Clarke May 27, 1952 2,605,914 Hala Aug. 5, 1952 2,627,761

between said first shaft and said Recker Feb. 10, 195.3'` 

